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Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
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Measuring Sensitivity to Viewpoint Change with and without Stereoscopic Cues
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Truth or Square: Aspect Ratio Biases Recall of Position Encodings.

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    Summary

    Bar chart aspect ratio influences viewer estimation. Viewers overestimate wide bars and underestimate tall bars due to a bias towards remembering bars as square, impacting data visualization accuracy.

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    Area of Science:

    • Data Visualization
    • Cognitive Psychology
    • Human-Computer Interaction

    Background:

    • Bar charts are widely used for precise data value conveyance.
    • Previous research shows conflicting biases in bar chart reproduction (overestimation vs. underestimation).

    Purpose of the Study:

    • To explain conflicting findings in bar chart reproduction bias.
    • To investigate the role of bar mark aspect ratio in visual estimation bias.

    Main Methods:

    • Three empirical studies were conducted.
    • Participants reproduced bar charts with varying aspect ratios.
    • Memory-based reproductions were analyzed to identify estimation biases.

    Main Results:

    • The aspect ratio of bar marks significantly influenced estimation bias.
    • Wide aspect ratio bars were overestimated; tall aspect ratio bars were underestimated.
    • This bias persisted in memory-based reproductions.

    Conclusions:

    • Conflicting biases in bar chart reproduction are explained by aspect ratio.
    • A bias towards a "prototypical square" influences perception.
    • This bias may affect other visualizations like treemaps and sequential displays.